Hi! The patch "patch-exiv2-0.21" was integrated upstream and is not needed anymore. You can remove it (/usr/ports/graphics/gexiv2/files/patch-exiv2-0.21) and rebuild.
I opened a PR to track this problem: http://www.freebsd.org/cgi/query-pr.cgi?pr=173451 (the link may not be available yet) -- Jean-Sébastien Pédron
signature.asc
Description: OpenPGP digital signature
